Skip to Content

Register Login

Industry Online Support

Technical Forum

Navigation

virtual axis variable cycle time

Created by: Ziemens at: 6/24/2011 8:53 AM (27 Replies)

Rating (0)

Thanks 1

Result pages:: |; 1 | 2 | 3; |

28 Entries

Entries per page: 10 | 20 | all

6/24/2011 8:53 AM	Rate (0)
Ziemens Silver Member Joined: 3/2/2007 Last visit: 11/7/2024 Posts: 944 Rating: (5)	Hy, we have a simotion d445, with a virtual axis running at a speed 300 cycles per minute. The period of each cycle should be 200 ms. But, when we monitor the actual position of this axis on the trace, we found that sometimes the cycle is 196 ms and other times it is 203 ms. This is really strange, a virtual axis with variations in the cycle time. What could be the problem here? Thanks in advance.
	... thank you ...
Suggestion To thank Quote Answer

6/27/2011 8:31 AM	Rate (0)
jacek d Platinum Member Joined: 9/23/2005 Last visit: 11/8/2024 Posts: 4781 Rating: (730)	And what's the sampling time ?
	Regards, Jacek What is confusing you is the fact that you never see a number but always its digit representation. So you end up thinking that the number is the representation. - Andrej Bauer Any claims against me - based on whatever legal reason - resulting from the use of any code and/or ideas presented on this forum shall be excluded. #StayWithUkraine
Suggestion To thank Quote Answer

6/27/2011 8:55 AM	Rate (0)
Ziemens Silver Member Joined: 3/2/2007 Last visit: 11/7/2024 Posts: 944 Rating: (5)	dp cycle time is 7 ms . master application cycle is also 7 ms .
	Last edited by: Ziemens at: 6/27/2011 8:56 AM ... thank you ...
Suggestion To thank Quote Answer

6/27/2011 9:12 AM	Rate (0)
jacek d Platinum Member Joined: 9/23/2005 Last visit: 11/8/2024 Posts: 4781 Rating: (730)	So here's your answer. In fact cycle of your axis is pretty stable and constant - virtually. But it's calculated and sampled at very long intervals.
	Regards, Jacek What is confusing you is the fact that you never see a number but always its digit representation. So you end up thinking that the number is the representation. - Andrej Bauer Any claims against me - based on whatever legal reason - resulting from the use of any code and/or ideas presented on this forum shall be excluded. #StayWithUkraine
Suggestion To thank Quote Answer

6/27/2011 9:36 AM	Rate (0)
Ziemens Silver Member Joined: 3/2/2007 Last visit: 11/7/2024 Posts: 944 Rating: (5)	but how can i solve this issue ? this virtual axis is the master of several real axis on the machine , and also i am using it as a master for output cams ...
	Last edited by: Ziemens at: 6/27/2011 9:37 AM ... thank you ...
Suggestion To thank Quote Answer

6/27/2011 9:40 AM	Rate (0)
jacek d Platinum Member Joined: 9/23/2005 Last visit: 11/8/2024 Posts: 4781 Rating: (730)	Shorten DP and aplication cycle.
	Regards, Jacek What is confusing you is the fact that you never see a number but always its digit representation. So you end up thinking that the number is the representation. - Andrej Bauer Any claims against me - based on whatever legal reason - resulting from the use of any code and/or ideas presented on this forum shall be excluded. #StayWithUkraine
Suggestion To thank Quote Answer

6/27/2011 2:01 PM	Rate (0)
Ziemens Silver Member Joined: 3/2/2007 Last visit: 11/7/2024 Posts: 944 Rating: (5)	latest update : we need to installHotfix 6 for SIMOTION SCOUT v4.1 sp5 . where can we find it ? thanks
	... thank you ...
Suggestion To thank Quote Answer

6/27/2011 2:42 PM	Rate (0)
jacek d Platinum Member Joined: 9/23/2005 Last visit: 11/8/2024 Posts: 4781 Rating: (730)	Pls, have a look here.
	Regards, Jacek What is confusing you is the fact that you never see a number but always its digit representation. So you end up thinking that the number is the representation. - Andrej Bauer Any claims against me - based on whatever legal reason - resulting from the use of any code and/or ideas presented on this forum shall be excluded. #StayWithUkraine
Suggestion To thank Quote Answer

6/27/2011 3:10 PM	Rate (0)
Ziemens Silver Member Joined: 3/2/2007 Last visit: 11/7/2024 Posts: 944 Rating: (5)	but, we cannot download the hotfix 6 directly from the internet ? as a file ?
	... thank you ...
Suggestion To thank Quote Answer

6/27/2011 3:14 PM	Rate (0)
jacek d Platinum Member Joined: 9/23/2005 Last visit: 11/8/2024 Posts: 4781 Rating: (730)	At least not from Siemens website. Ask your Siemens rep.
	Regards, Jacek What is confusing you is the fact that you never see a number but always its digit representation. So you end up thinking that the number is the representation. - Andrej Bauer Any claims against me - based on whatever legal reason - resulting from the use of any code and/or ideas presented on this forum shall be excluded. #StayWithUkraine
Suggestion To thank Quote Answer

|

Share this page:

Share this page on...

Follow us on